Machine for booking sheet-rubber stock



Oct. 28. 1924. 1,512,967

- E. E. WINKLEY MACHINE FOR BOOKING SHEETRUBBER STOCK Fi1ed Jan. 26 19209 Sheets-Sheet 1 WITNESS INVENTUR 9 Sheets-Sheet 2 WINKLEY Filed Jan. 26

MACHINE FOR BOOKING SHEET RUBBER STOCK Ot. 2s 1924.

Oct. 28 1924. 1,512,967

E. E. WINKLEY MACHINE FOR BOOKING SHEET RUBBER STOCK Filed Jan. 26 19209 Sheets-Sheet 5 a 1 WITNESS it; INVENTOR- W ZWe/mefi Oct. 28 1924.

E. E.-WINKLEY MACHINE FOR BOOKING SHEET RUBBER STOCK Filed Jan. 26 19209 Sheets-Sheet 4 INVENTOR @4254 5, W" v f WITNESS Wfl/zver:

Oct. 28. 1924. 1,512,967

E. E. WINKLEY MACHINE FOR BOOKING SHEET RUBBER S TOCK Filed Jan. 26 19209 Sheets-Sheet 5 WITNESS INVENTO Fe Wfi/mez 6? W6; ,v

5 VWM Oct. 28 1924. 1,512,967

E. E. WINKLEY MACHINE FOR BOOKING SHEET RUBBER STOCK Filed Jan. 26 19209 Sheets-Sheet 6 2 f \g Q VVITNESS I VENTUR Oct. 28. 1924. 1,512,967

E. E. WINKLEY MACHINE FOR BOOKING SHEET RUBBER STOCK Filed Jan. 26 19209 Sheets-Sheet '7 WITNESS NVE O Oct. 28 1924.

' 1,512,967 E. E. WINKLEY MACHINE FOR BOOKING SHEET RUBBER ,STOCK FiledJan. 26 1920 9 Sheets-$heet 8 paw '1 T \/\/ITN E55 i INVENTUR Oct. p

E. E. WINKLEY MACHINE FOR sooxmesnnmr RUBBER STOCK Filed Jan. 26 1920 9Sheets-Sheet 9 nlllrillllflalll III! lllxlillll ill..-

Patented Oct. 28, 1924,

UNITED STATES PATENT OFFICE.

ERASTUS E. WINKLEY, OF LYNN, MASSACHUSETTS. ASSIGNOR TO UNITED SHOE MA-CHINERY CORPORATION, OF PATEBSON, NEW JERSEY, A CORPORATION OF NEWJERSEY.

MACHINE FOR BOOKING SHEET-RUBBER STOCK.

Application filed January 26, 1920. Serial No. 354,038.

To all whom it may concern: I

Be it known that I, ERASTUS E. IVINKLEY, acitizenot the United States,residing at Lynn, in the county of Essex and State of Massachusetts,have invented certain new and useful Improvements in Machines forBooking Sheet-Rubber Stock; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

The invention relates to a machine for booking sheet rubber stock.

Sheet rubber stock such, for instance, as stock to be used for the solesof rubber shoes, is usually cut into sheets as it comes from the shapingand calendering rolls and these sheets, which are in a plastic, stickystate, are stacked or booked and allowed to shrink for a suitable lengthof time before the soles or other blanks are out therefrom. Heretoforethe sheets have been stacked orbooked by' manually piling them one aboveanother upon boards and interposing sheets of canvas or other suitablefabric between the sheets to separate their adjacent faces.

It is the primary object of the present invention to automaticallyeffect the booking of the sheet rubber stock, and thereby increase thespeed of the operation and reduce the expense incident to the usual handbooking. To this end the invention contemplates the provision of meansfor automatically stacking sheets of stock and for placing separatingsheets of canvas or other suitable material between adjacent faces ofthe sheets to form a book which may thereafter be handled or manipulatedin the usual or any suitable manner.

In embodying the invention in a machine adapted to operate upon acontinuous web of stock as it comes from the calendaring or shapingrolls mechanism is also provided for cutting the web of stock intosheets, and the stacking mechanism is constructed to take the sheetsfrom the cutting mechanism and deliver them'one above another upon abooking plate or board, the separator sheets being automatically placedover each sheet or layer of sheets on the board before the stackingmechanism delivers the succeeding stock sheet or layer of sheets.

In some plants the separator sheets for each book or stack of sheets aresecured at one end to a rib extending along one side of the bookingboard, the ends of the separator sheets being spaced to receive thestock sheets between them, and the form of invention which is preferablyused in a machine adapted to utilize this form of booking board inbooking the sheets is shown in the accompanying drawings.

In the drawings Fig. 1 is an end elevation of the machine, Fig. 2 is apartial end elevation on a larger scale, Fig. 3 is a side elevationlooking toward the left in Fig. 1, Fig. 4 isv a similar partialelevation on a larger scale, Fig. 5 is a plan view, Fig. 6 is a detailedplan view showing a part of the cutter mechanism, Fig. 7 is an elevationlooking toward the right in Fig. 6, Fig. 8 is a front elevation of theparts shown in Fig. 6, Figs. 9, 10, and 11 are detailed views of one ofthe stacking grippers. Figs. 12, 13, 14 and 15 are detailed viewsillustrating the picker mechanism for acting on the separator sheets andFigs. 16, 17 and 18 are detailed views of the gripper mechanism forplacing the separator sheets in position over the stock sheets on thebooking board.

The machine shown comprises a cutting mechanism for cutting a web ofrubber stock into sheets, two sets of stacking grippers for takingalternate sheets from the cutting mechanism and delivering them in pairsside by side upon a booking board, mechanism which acts after a pair ofstock sheets have been placed on the board and before the succeedingpair is placed thereon to lay one of the separator s eets over thesheets on the board, and a conveyor for bringing empty booking boardssuccessfully into position to receive the stock sheets and for removingthe filled boards.

The cutting mechanism shown is substantially the same in constructionand mode of operation as the mechanism shown and described in Patent No.1,118,460, Nov. 24, 1914, and comprises a continuously rotating drum 2onto which the web of stock is delivered from conveyor belts 4, and adisk cutter 6 mounted to travel back and forth across the drum and tomove with the drum during each cutting stroke. The disk is journaled ina cutter carriage 8 mounted to reciprocate on two transverse guide rods10 and 12 which are secured in the upper ends of two arms 14 journaledon the drum shaft 16 at opposite ends of the drum. The cutter carriageis moved transversely of the drum by a reciprocating head 18 mounted onguide rods 20 and provided with a groove 22 enga edby a roll 24 on thecutter carriage. he head is moved backand forth by a sprocket chain 26supported upon sprocket wheels 28, one of which is secured to the upperend of a shaft 30 which is actuated throu h a rack 32, engaging a pinion34 on the lower end of the shaft and also connected by a link 36 with alever 3 The lowerend of the lever is secured to a rock shaft 40 whichalso carries a cam lever engaginga cam groove in the disk 42 which issecured to'the shaft 16. The arms 14 are nominally held in retractedposition against spring supported stops 44 by springs 46 and are movedforward with the drum 2 during the travel ofthe cutter carriageacrossthe drum by one of a series of spring pressed pins 48 which project fromthe ends of the drum into position to engage the arms 14. In theconstruction shown the length of the sheets cut from the stock is onesixth the circumference of the drum and there are, therefore, six pins48, three pins being mounted in one end of the drum and the alternatethree pins being mounted in the opposite end of the drum. When thecutter carriage completes its travel across the drum in either directiona projection in the form of an adjustable screw 50 strikes the upper endof a lever 52, which is pivoted on the arm. 14, and rocks the lever sothat its lower end forces back the pin 48, which is in engagement withthe arm 14, thus disengag ing the pin from the arm so that the arms andcutter carriage are returned to retracted position by the springs 46.Since the cutter carriage. should be moved across the drum, after thedrum has made a sixth of the revolution, the drumis loosely mounted onthe shaft 16 and is driven from the shaft through gearing 54proportioned to turn the drum through a sixth of a revolution for eachhalf revolution of the shaft.

The sheets are taken from the drum 2 by stacking gripperswhich seize theleading edge of each sheet and transfer it to a booking board. It hasbeen found that comparati'vely sm'all sheets will shrink to final sizeand condition more quickly than the larger sheets into which the stockhas usually been cut and for economy and convenience in theslibsequenthandling of the smaller sheets and also to enable booking boards of theusual size to be used, the grippers are constructed and operated todeliver the sheets so that they are stacked in layers of two sheetsarranged side by side.

In the construction shown two sets of grippers are arranged and operatedto take alternate sheets from the drum 2 and to deliver them side byside on a booking board 56, Figs. 1 and 2. The jaws of one set ofgrippers are carried on the lower ends of two arms58, the upper ends ofwhich are secured to a hollow rock shaft 60, which is mounted in abearing bracket. 62, Figs. 4, ,9, 10 and 11. One jaw, 64, of each pairof aws is fixed or formed on the lower end of an arm 58 and the path ofmovement of the arms is such that this jaw'will ass under the leadingedge of a sheet on t e drum 2 as the arms reach the limit of theirforward movement. The other jaws 66 of the grippers are pivoted on thearms 58 to swin toward and from the fixed jaws 64. lhach pivoted jaw isconnectedb a link 68 with one end of a lever 70, the ot ier end of whichis connected by a link 72 with a bell crank lever 74 mounted on an arm58 and .con-

nected by a link 76 with a second bell crank lever 7 8 mounted on thearm near its upper edge. One of the bell crank levels 78 is'connected byan intermediate lever 80 with a rod 82, mounted to slide within thehollow shaft 60, while the other bell crank lever 78 is connecteddirectly to this rod, as indicated at the right in Fig. 4. The rod ismov toward the right in Fig. 4 or in a direction to close the grippersby a spring 84' surrounding the rod within the shaft 60, and by a spring86 connected with the end of the rod. The rod is moved in theoppositedirection to open the grippers through a rod 88, mounted to slide in abearing in the machine frame, and rovided at its innerend with adepending nger engaging the end of the rod. The other end of the rod 88enga es an arm 90 projecting from the up ,r en of a vertical sleeve 92,the lower en of which is provided with an arm 94 connected by a link 96with one arm of a bell crank lever 98, the other arm of which rides on acam 100 secured to the shaft 16. The cam is timed to open the grippersas they reach their retracted position in Fig. 2 so that the sheet willbe released as it is brought into pos tion close to the gage 102 at theedge of the booking board 56, Fig. 2. The cam is also timed to close theper after the fixed jaws 64 have passed under the leading edge of thesheet on the drum 2. As the sheet is transferred from the drum 2 to thebooking board by the grip 'rs 64, and 66, it is carried over a guarwhich supports it during its movement over the left hand portion 0 thebooking board and prevents its engagement with. the sheet Fl w 4 alreadydeposited upon this part of the board, and insures its delivery intoproper position upon the board.

The second. set of grippers is similar in construction to the setalready described and is mo'unted'and operated in a similar manner. Thefixed gripper jaws 106 are secured on the ends of arms 108 carried by ahollow rock shaft 110 and arranged to pass on opposite 'sides of theguard plate 104. The pivoted gripper jaws 112, of this pair of grippers,are connected by links 114 with bell crank levers 116, one of which isconnected directly, the other of which is connected through anintermediate lever 118, with the rod 120 within the hollow shaft 110which is operated in one direction by springs 122 and 124, and in theother direction by a slide 126, controlled by a cam 128 through a bellcrank lever connected by a link 130 with a bell crank lever 132 engagingthe outer end of the rod. Since the gripper jaws 1 12 in their advancemovementtoward the drum 2 would otherwise engage the guard plate 104 thecam 128 is shaped to close the grippers during their advance movementand to open them as they come into 1 position to take the sheet from thedrum '2. j Y

The two sets of grippersare alternately operated so that first oneset'and then the other takes a sheet from the drum and deposits it uponthe booking board by two cams 134 and136 secured to the shaft 16. Thecam- 134 operates a cam lever 138, the upper end of which is connectedby a link 140 with an arm 142 secured to a rock shaft 144, the inner endof which carries a gear segment 146, engaging a gear segment 148 on thehub of one of the arms 58. The other cam 136 operates a cam lever 150,the upper end of which is connected by a link 152 with an arm 154 formedon a sleeve 156 surrounding shaft 144 and provided at its inner end witha gear segment 158 engaging a gear segment 160 secured to the shaft 110which carries the gripper arms 108.

The booking board shown is provided witlrfour separator sheets ofcanvas, or other suitable fabrics, which are secured in spaced relationat the left hand edge of the board as indicated in Fig. 2, the boardthus being adapted for the stacking or booking thereon of five pairs orlayers of sheets taken from the cutter drum 2. After two sheets of stockhave been deposited upon the board by the two sets of stack inggrippersone of the separator sheets is automatically carried over intoposition to cover the sheets before the stacking grippers deposit thenext two sheets upon the board. When the booking board is in position toreceive the sheets the separator sheets have previously been folded overinto the position indicated in Fig. 2 with that sheet uppermost which isto be laid over the first two sheets of stock deposited on the bookingboard. The means for placing the separator sheets between the sheets ofstock comprises means for separating the top sheet from the sheetsbeneath it, and for turning the sheet over onto the sheets on the board.In the construction shown this means comprises two pickers adapted topick up the outer edge of a separator sheet and to deliver it totravelling grippers, which seize the edge of the sheet and fold thesheet over into position above the sheets on the booking board. In theconstruction shown each picker is provided with a foot 162 adapted toengage the sheets and provided with two picker points 164 adapted toenter the sheet and hold it against the bottom of the foot, Figs. 12, 13and 14. The picker points are carried in the lower ends of two levers166 which are provided with arms engaging an annular grcove in a block168 which is mounted for vertical movement within a recess in the foot.The foot is secured on the lower end of a sleeve 170 which is mountedfor vertical movement in a head 172 and the block 168 is secured to thelower end of a rod 174, which extends up through the sleeve 170 and thehead 172, and is provided at its upper end with a collar 1'76. A spring178 interposed between the bottom of a recess in the sleeve 170 and acollar 180 on the rod 174 tends to iold the block 168 against the upperend of the recess in the picker foot and thus hold the picker pins inretracted, inactive position. A spring 182, mounted within a recessinthe head 172, and act ing on' a pin 184, carried by the picker foot,tends to force the foot downwnrd with relation to the head, the downwardmovement being limited by the engagement of the collar 176 with. theupper end of the head. A sleeve 186 is mounted in the upper end of thehead and a spring 188 arranged between the collar 180 and the sleevetends to hold the sleeve in engagement with the collar 176. A springpressed latch 190 is pivoted to the picker head and is arranged toengage a projection on the sleeve 186 and lock it in position in thehead. A second spring pressed latch 192 is pivoted to the picker headand is arranged to engage a projection on the picker foot 162 and lockthe foot in position in the head against the tension of the spring 182.The picker head is carried on a vertically movable slide 194 mounted ina guideway 196.

In Fig. 18 the parts of the picker are shown in the position which theyoccupy after a sheet has been engaged and the picker has been raised toits upper position. carrying the sheet with it, the parts of the pickerbeing locked in the relative positions indicated by the latches 190 and192. When the sheet is to be released the latch 190 is rocked to freethe sleeve 186 so that the spring 178 may lift the rod 174 and block 168to withdraw the picker points 164 from engagement with the sheet, thespring 188 at the same time moving the sleeve 186 up into engagementwith the collar 176. lVhen the picker is'next moved to engage thesucceeding sheet a pin 198 on the latch 192 rides over a can] 200mounted on the guideway 196 and the latch 192 is operated to release thepicker foot so that it is moved downward with relation to the pickerhead 172 until its downward movement is an rested by engagement of thecollar 176 with the upper end of the head. This movement brings thesleeve 186 into position to be again engaged by the latch 1.90 so thatit is again locked in position in the head. When the foot 162 engagesthe sheet its downward movement is arrested and continued movement ofthe head 172 tends to compress the spring 188 and as this spring isstronger than the spring 17 8 the rod 174 and block 168 are moveddownward, thus operating the'levers 166 to force the picker points 164into the sheet. The final clownward movement of the head 172, with relation to the foot 162, brings the latch 192 into position to rev-engagethe projection on the foot and thus again lock the foot in position inthe head. The parts of the picker are now again in the relativepositions indicated in Fig. 13 so that the sheet is retained against thebottom of the picker foot by the points 164 and is raised during theupward movement of the picker. During this movement the pin 198 ridesagainst the-cam 200 which is carried by a spring pressed lever so thatit may yield to allow the latch 192 to pass idly during the upwardmovement of the picker and may immediately move forward into activeposition after the latch has passed. The pickers are raised and loweredat proper intervals by a cam 202 secured to a cam shaft 204 and engagingone end of the cam lever 206, the other end of which is'conneoted by alink 208 to one arm of a lever 210, the other arm of which is connectedby a link 212 with one of the picker slides, Figs. 1, 3, 4 and 5. Thelever 210 is secured to a rock shaft 214 which carries an arm 216similarly connected by a link to the other picker slide. The cam shaft204 is timed to make one revolution for each complete booking cycle andsince each book in the construction shown is provided with fourseparator sheets the cam 202 is shaped to operate the pickers four timesduring each revolution of the shaft 204.

The latch 190 is operated to release the sheets as above described by anarm 218 secured to a rock shaft 220. arm 2% is secured to the end of therocksha ft and is arranged to be engaged a pin 226 carried by one of thechains w ic'h operate the traveling grippers to which the sheets arepresented by the pickers, Figs. 3, 4 and 15. The traveling gripperswhich take the sheets from the pickers are carried by slides 228,mounted in transverse ways 230, and connected by links 232 with chains234, which are mounted on sprocket wheels and are driven in unisonthrough gearing 1236 connecting sprocket wheels'at one end of the chainswith a continuously rotating shaft 238, Figs. 1, 2, 5, and 16 to 18.Each gripper comprises a jaw M0 fixed to a rotary head 242 and a jaw 244pivoted on the head and pressed toward the fixed jaw by a spring 246'.The rotary head 242 is formed on the end of a shaft 248, mounted in theslide 228, and provided on its inner end with an arm 250 carrying a roll252 which travels in a groove 254 formed in the guideway 230. Thepivoted jaw 244 is provided with a tail piece extending into line withthe axis of the shaft 248 and engaged by one end of a lever 256 which ispivoted on the slide 228' and carries a roll 258" adapted to engage camribs 260 which are secured to the guideway 230 in positions to open andclose the gripper at the proper times. The groove 254 is provided with aV-shaped depression 262 which acts to turn the gripper carrying headthrough 180 as. the roll 252 travels through it in either direction.

On the return travel of'the gripper slides the depression 262 in thegroove 254 slots to turn the grippers through 180 from the positionindicated in Fig. 17, thereby turning the grippers over so that themovable jaws will be above the fixed jaws, when the grippers are at thelimit of their movement toward the left in Fig. 1 and are beyond theends of the separator sheets. At this time the pivoted gripper jaws willbe raised by the cam. ribs 260 which underlie the rolls on the ends ofthe gripper opening levers 256. After the pickers have raised the rearend of one of the separator sheets the forward travel of the gripperslides will bring the fixed gripper jaws 244 under the side edges of thesheet and as the rolls 252 ride off of the cam ribs 260 the movablegrippers jaws will be closed to grip the edges of the sheet. At the sametime, or immediately thereafter, the pickers will be operated as abovedescribed to release the sheet. During the continued travel of thegripper slides the depressions 262 in the groove 254 will turn thegrippers through 180, thereby turning or folding the rear end of thesheet over so that it will be properly turned over and carried into p0sition over the booking board by the continued travel of the grippers.As the grip per slides approach the limit of their travel toward theright in Fig. 1 the grippers are opened to release the sheet by cam ribssimilar to the cam ribs 260 shown in. Figs. 16 and 17.

The booking boards are supported upon two flanged guide rails 264arranged to underlie opposite edges of the boards, as indicated in Figs.1 and 2. Empty boards are fed into position to receive the sheets ofstock and the filled boards are moved away from receiving position bytwo conveyor chains 266, carried by two pairs of sprocket wheels 268 and270, and provided with projecting lugs 272 arranged to receive thebooking boards between them, Figs. 3 and 4. The booking boards areplaced on the guide rails and between the feed lugs 272 at the righthand end of the machine in Fig. 3 and the separator leaves or sheets areturned back and are supported by an endless carrier, consisting of flatplates 274 connected by pivot joints and carried on supporting wheels276. The supporting wheels 27 6 at one end'of the carrier are securedupon the shaft 278 which also carries the sprocket wheels 270 for theconveyor chains 266 so that the carrier will move in unison with thebooking boards as they are fedalong the supporting rails. The means forintermittently feeding forward the conveyor chains and carrier issubstantially the same in construction and mode of operation as theconveyor actuating means shown and described in Patent No. 1,181,091,April 25, 1916, and comprises grooved cam 280, secured to the shaft 204,and engaging a roll 282 on a cam lever 284, the upper end of which isconnected by a link 286 with an arm 288 secured to a rock shaft 290,Figs. 1 and 3. The shaft 290 carries a gear segment 292, from whichmotion is transmitted to the shaft 27 8 through a rack segment 294mounted to reciprocate on a frame 296, which is rocked to engage therack segment with, and disengage it from, a gear 298 by a cam 300, camlever 302, and link 304. The rocking frame 296 also carries a lockingrack segment 306 which engages the gear 298, while the rack segment 294is disengaged therefrom and is being given its return stroke by gearsegment 292. Gear 298 is connected through gearing 308 with the shaft278 so that the conveyor chains 266 and the carrier for supporting theleaves of the booking board are advanced to bring an empty booking boardinto receiving position and to carry a full board away from receivingposition and are then looked in position during the delivery of thesheets of stock upon the board.

The Various mechanisms and parts of the machine are driven from a maindriving shaft 310, which carries a worm 312, engaging a worm wheel 314on the shaft 204,

and also carries two sprocket wheels 3 16 and 318. The wheel 316 isconnected by a chain 320 with a sprocket wheel on a sleeve 322 which ismounted to turn on the shaft 238 and also carries a sprocket Wheel whichis connected by a chain 324 with a sprocket wheel secured to the shaft16, through which the sheet cutting mechanism and the sheet stackinggrippers are actuated. The sprocket wheel 318 is connected by chain 326with a sprocket wheel secured to the shaft 228, through which the chainsfor reciprocating the separator sheet grippers are driven.

While it is preferred to employ the construction and arrangement ofparts shown and described in embodying the invention in a machineadapted to sever sheets from a continuously moving web and to book saidsheets on booking board to which the separator sheets are attached, itwill be understood that this construction and arrangement is notessential to the broader features of the invention and may be varied ormodified as found desirable or best suited to the con ditions underwhich the invention is to be utilized.

What is claimed is:

1. In a machine for. stacking sheets of unvulcanized rubber in plasticsticky condition with separator sheets interposed to prevent adhesion ofthe rubber sheets to each other, mechanism for moving sheets of rubberstock of the consistency described to stacking position and depositingthem successively in side-by-side relationship to make layers in astack, and mechanism for placing separator sheets between adjacent facesof the stock sheets.

2. In a machine for stacking sheets of unvulcanized rubber in plasticsticky condition with separator sheets interposed to prevent adhesion ofthe rubber sheets to each other, mechanism for severing sheets of rubberstock from a web of stock of the described consistency and successivelydepositing the sheets in side-by-side relationship to make layers in astack, and mechanism for placing a separator sheet over each stock sheetprior to the delivery of the stock sheet superposed thereon.

3. A machine for handling sheet rubber stock having, in combination,mechanism for successively delivering a plurality of sheets of rubberstock upon a support to form a layer of a stack in which the adja-' centfaces of the stock sheets are separated by interposed separatorsheets,and mechanism for delivering a separator sheet upon the layer of sheets.

4. A machine for handling sheet rubber stock having, in combination, asupport for a booking board, mechanism for delivering on the bookingboard layers of a plurality of stock sheets, arranged side by side inthe direction of movement of the'sheets to the support, and mechanismfor laying separater sheets between the layers of stock sheets 5. Amachine for handling sheet rubber stock having, in combination, supportsfor a booking board and for turned back separator sheets attached to theboard, mechanism for delivering stock sheets onto the board, andmechanism for turning the separater "sheets successively over onto stocksheets 1 h oard 6. A machine for handling sheet rubber stock havin incombination a support for a booking board, mechanism for feeding boardsto and away from receiving position and mechanism for alternatelyplacing sheets of stock and separator sheets on heboard,

i 7. machine for handling sheet rubber stock havin in combination,mechanism for feeding coking boards successively into receiving positionand mechanisms for piling sheets of rubber stock and interposedseparator sheets on the board.

8. A machine for handling sheet rubber stock having, in combination,mechanism for feedin booking boards into and removi'ng thfm f i'omreceivingosition, and mechanism for piling a preetermined number 01sheets of rubber stock and interposed separator sheets on eachboard whilin receiving position.

9. A machine for handling sheet rubber stock having, in combination, anintermittently operated conveyor for feeding booking boards into and outotreceiving position, mechanism for cutting sheets of rubber stock froma web, mechanism for piling sheets on the board in receiving position,andmechanism for laying separator sheets overstock sheets on the board.

10. A machine for handling sheet rubber stock having, in combination,mechanism for severing sheets from a web of rubber stock operativewhilethe stock is moving, and mechanism for placing said sheets in abook with separator sheets between adjacent faces of the stock sheets.

11; A machine for handling sheet rubber stock having, in combination,mechanism for severin sheets from a moving web of rubber stoc lr, andmechanisms for stacking the sheets and for placing the separator sheetsbetween adjacent faces of the stock sheets. i

12. A machine for handling sheet rubber stock having, in combination,mechanism for severing sheets from a web of rubber stock, supports fora. booking board and for turned back separator sheets attached totlreiboard, mechanism for delivering the stock sheets in a pile, on theboard, and mechanism for turning the separator sheets onto stock sheetson the board.

A machine for handling sheet rubber stock having, in combination,mechanism.

for piling sheets of rubber stock on a support, pickers for separatingindividualsheets from a pile of separator sheets, and means for carryingseparator sheets over sheets of stock on the board,

14. A machine for handlingsheetrubben stock having, in combination, asupport for a booking board, mechanism 'for cutting sheets from a. webof rubber stock, stacking grippers for taking the sheets from thecutting mechanism and piling them on the board, and mechanism forseparating individual sheets from a pile of separator sheets and placingthem between stock sheets.

15. A machine for handling sheet rubberstock having, in combination, asup-port for of the sheet from the pickers, and means for thereafterturning the grippers to turn the edge of sheet bottom side up asthegrippers travel over the sheet.

17. A machine for handling sheet rubber stock having, in combination,mechanism for stacking a plurality of sheets of rubber stock inside-byside relationship to form superposed layers of stock, andmechanism for placinga singleseparator sheet over each layer of stock inthe stack.

18. A machine for handling sheet rubber stock, having, in combination,mechanism for delivering sheets of rubberstock one-above another upon asupport, and mechanism for carrying a separator sheet over each stocksheet after it has been delivered and be fore the delivery of thesuperposed stock sheet. i 19. A machine for handling sheetrubber stockhaving, in combination, asupport for a booking board, mechanism fordelivering pairs of sheets of rubber stock thereon, one in front of theother, and mechanism forlaying separator sheets between superposedpairsof rubber sheets.-

20. A machine for handling'she'et rubber stock having, in combination,for

moving sheets toward stacking position and: stacking certain of themside by side'in the direction of movement to make a layer of sheets andto superpose layer upon layer, and mechanism for placing separator'sheetsbetween adjacent faces of the stock sheets.

21. A machine for handling sheet rubber stock comprising mechanism fordelivering the sheets of rubber stock one above another upon a bookingboard comprising a plurality of separator sheets, and mechanism forturning a separator sheet over each stock sheet after the latter arrivesupon the support and prior to the delivery of the stock sheet to besuperposed thereon.

22. A machine for stacking sheet rubber stock having, in combination,mechanism for delivering sheets of rubber stock one above another upon abooking board comprising a plurality of attached separator sheets, andmechanism for turning the separator sheets one at a time over each stocksheet after the latter has been delivered and before the delivery of thesuperposed stock sheet.

23. In a machine of the class described, a cylinder to which a web ofrubber stock is fed, a cutter co-operating with the cylinder to cutsheets from the web of stock, and

grippers for taking successive severed sheets directly from the cylinderand depositing them upon a support side by side in the direction ofmovement of the sheets.

24:. In a machine of the character described, a'cylinder to which a webof rubber stock is fed, a cutter movable with the cylinder and alsotransversely thereof to cut the stock while the latter is moving, and agripper for taking severed sheets directly from the cylinder anddepositing them on a support.

25. In a machine of the character described, a cylinder to which a webof rubber stock is fed, a cutter movable with the cylinder and alsotransversely thereof to cut the stock while the latter is moving, and aplurality of grippers operating in succession to take severed sheetsdirectly from the cylinder and depositing them upon a support.

26. In a machine of the character described, a cylinder to which a webof rubber stock is fed, a cutter co-operating with the cylinder to cutsheets from the web of stock while the latter is moving, a deliverytable, and a plurality of sets of grippers for taking severed sheets insuccession directly from the cylinder and depositing them upon the tablein side-by-side relationship.

27. In a machine of the character described, a cylinder to which a webof rubber stock is fed, a cutter co-operating with the cylinder to cutsheets from the web of stock while the latter is moving, a deliverytable, a plurality of sets of grippers for taking severed sheets insuccession directly from the cylinder and depositing them upon the tablein side-by-side relationship to form a layer of sheets, and meansco-operating with one set of grippers for carrying the last sheetentirely over the first sheet deposited on the table so as not todisplace the sheet first delivered in the layer.

28. In a machine of the character described, a cylinder to which a webof rubber stock is fed, a cutter co-operating with the cylinder to cutsheets from the web of stock while the latter is moving, a deliverytable, a plurality of sets of grippers for taking severed sheets insuccession directly from the cylinder and depositing them upon the tablein side-by-side relationship to form a layer of sheets, and a supportarranged to co-operate with one set of grippers in delivering the lastsheet in a plane above the sheet first delivered in the layer so as notto displace the latter.

29. In a machine of the character described, a delivery table, aplurality of means for delivering sheets of rubber stock in sideby-siderelationship to form layers of sheets and in superposed relation to forma stack, and means for depositing separator sheets between the layers ofthe stack.

30. In a machine of the character described, a delivery table, aplurality of sets of grippers for delivering sheets of rubber stock inside-by-side relationship to form layers in a stack, a stationary meansco-operating with one set of grippers to carry one sheet of each layercompletely over the sheet first deposited in each layer so as to avoiddisplacing the sheet first deposited, and means for interposingseparator sheets be tween the layers of rubber stock in the stack.

31. In a machine of the character de scribed, a support for a bookingboard comprising a plurality of attached separator sheets, means fordelivering sheets of rubber stock to the booking board, means forsuccessively lifting the unattached ends of the separator sheets, andmeans for receiving the unattached end of each separator sheet from thelifting means and for turning the sheet over upon a sheet of rubberstock on the booking board alternately with the delivery of the rubberstock whereby a stack of rubber stock is built up with separator sheetsinterposed between the adjacent surfaces of the stock sheets.

32. In a machine of the character described, a support for the bookingboard comprising a plurality of attached separator sheets, means fordelivering sheets of rubber stock to the booking board, means forseizing the unattached ends of the separator sheets one by one tointerpose them successively between the stock sheets, and means forrotating the seizing means so as to efi'ect the proper turning of theseparator sheets during the operation of superposing them upon the stocksheets.

33. In a machine of the character described, a support for a bookingboard comprising a plurality of attached separator sheets, grippers fordepositing sheets of rubber stock upon the booking board, and means forturning the separator sheets one by one to interpose them between thestock sheets, the last mentioned means comprising penetrating memberswhich engage the unattached end 01 each separator sheet to lift them oneby one, and traveling grippers which take the separator sheets from themembers and carry them by a turning movement to position themalternately with respect to the stock sheets whereby a stack of stocksheets and separator sheets is formed.

34. In a machine of the character described, a carrier intermittentlyoperative to position a plurality of booking boards successively inposition for receiving sheets of rubber stock, a plurality of grippersfor receiving the sheets and depositing them upon the booking board atthe time in receiving position, a continuously rotating cylinder fordelivering the sheets of stock tothe grippers, and gripper members fordelivering separator sheets alternately with respect to the stock sheetsso as to interpose the separator sheets between the stoeksheets in astack.

35. In a machine of the character described, a support for abookingboard comprising aplurality of attached separator sheets, meansfor successively lifting the unattached ends ot' the separator sheets,and means for receiving the unattached end of each separator sheet fromthe lifting means and for turning the sheet over upon a sheet of rubberstock on the booking board alternately with the placing thereon of arubber stock sheet whereby a stack of rubber stock is built up withseparator sheets interposed between'the adjacent surfaces of the stocksheets.

36. In a machine of the character described, a support for the bookingboard comprising a plurality of attached separator sheets, and means forseizing the unattached ends of the separator sheets one by one andturning them to interpose them successively between sheets of rubberstock placed one at a time upon the booking board, whereby a stack ofrubber sheets and separator sheets I and separator sheets is built up inthe book;

38. In a machine of the character do scribed, a support for sheetmaterial, and means for successively delivering a plurality of sheetsupon the support in side-by-side relationship to form alayer of sheets.

39. In a machine of the character (16 scribed, a stationary support forshee material, and means for receiving sheets from a source of supplyand depositing them on the support side by side in the direction ofmoveinent of the sheets.

a0. In a machine of the character described, a stationary support for astack of sheet material, and a'plurality of means operating insuccession to receive sheets from the source of supply. and to depositthem on the support one after the other in the direc tion of movement ofthe sheets to form a layer of the stack. o

41. In a machine of the character described, a cylinder and atravelingcutter'cooperating to sever sheets from a Web of stock while the latteris moving, a support for a stack of sheet material, and a plurality ofgrippers for taking the sheets successively from the cylinder anddepositing them in side by side relationship on the support to form alayer of the stack.

ERASTUS WINKLEY.-

